[PATCH] D12278: [X86] Add MSVC-compatible intrinsics for clac, stac, lgdt and sgdt

Saleem Abdulrasool via cfe-commits cfe-commits at lists.llvm.org
Mon Aug 24 19:01:26 PDT 2015


compnerd added a subscriber: compnerd.

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Comment at: lib/Headers/Intrin.h:961
@@ +960,3 @@
+static __inline__ void __DEFAULT_FN_ATTRS _lgdt(void *__ptr) {
+  __builtin_ia32_lgdt(__ptr);
+}
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Why does this need a builtin?  Is an inline assembly block using lgdt insufficient for some reason?

================
Comment at: lib/Headers/Intrin.h:965
@@ +964,3 @@
+static __inline__ void __DEFAULT_FN_ATTRS _sgdt(void *__ptr) {
+  __builtin_ia32_sgdt(__ptr);
+}
----------------
Similar to lgdt.


http://reviews.llvm.org/D12278





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